“谁在运动”一课选自湘科版教材四年级下册科学第三单元“位置与运动”第二课。通过前一课的学习,学生已经建立了“参照物”的概念,这节课首先运用毛泽东诗词和生活中的常见事实作为情境,引发学生思考。然后,通过游戏帮助学生掌握判断物体的运动和静止的方法,是看物体与参照物之间是否发生位置变化。最后,通过观察思考分析等活动帮助学生理解运动和静止的相对性。 “Who is in exercise ” A lesson from the Hunan Normal Edition textbook grade four science third unit “Position and movement ” The second lesson. Through the previous lesson, students have established the concept of “reference object.” This lesson first uses Mao Zedong’s poetry and common facts in life as a context to trigger students’ thinking. Then, through the game to help students grasp the object to determine the movement and rest, is to see whether the object and the reference object position changes. Finally, help students understand the relativity between movement and quiescence by observing and analyzing activities such as thinking and analysis.